URL redirecting/rewriting

Hi all experts,

I am working on old website where all images and files are under 'files' directory. One of the request from my client is to create a new page abc.com/level1/page
I created that page but he also wants to put one file under /level1/page which is not possible from current architecture because if I create page folder then all URL routing will fail and all page under 'page' directory including abc.com/level1/page won't open. So, what can I do in this situation? Is there any way to put that file under the /level1/page directory and all pages work as it is? Please help me. Thanks in advance.

Sorry, I don't follow. What exactly does one of your URLs look like now, what is the physical folder structure for that URL, and what do you want the URL to change to, and what physical folder structure do you want to change to?